Cities Mosaics 2

I’ve played lots of picross/mosaic games. I like this one — particularly the fact that the numbers appear on the tiles as you drag down the line. BUT unlike many other of this type of game, there’s no way to ex-out boxes that should NOT be filled. As the puzzles get more complicated, I’d like to be able to eliminate boxes that I *know* aren’t part of the picture. Otherwise, it’s a fine game.

I’m enjoying the game but I would love it if I could make 1 or 2 mistakes.